<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<link rel="stylesheet" th:href="@{/layui/css/1.css}" type="text/css">
<body>
<h1>123</h1>
</body>
</html>